Article
作者: Sheth, Siddharth ; Sukari, Ammar ; Adkins, Douglas ; Tanaka, Hideki ; Kawecki, Andrzej ; Curtin, Joshua C. ; Harrington, Kevin ; Swiecicki, Paul L. ; Viala, Caroline ; Diorio, Brooke ; Pawlowska, Ewa ; Braña, Irene ; Baig, Mahadi ; Guo, Ye ; Kerrigan, Kathleen ; Abdeddaim, Cyril ; Kim, Priya ; Shah, Sujay ; Toyoizumi, Kiichiro ; Vidales, Zara ; Spira, Alexander ; Iglesias, Lara ; Kadowaki, Shigenori ; Li, Shau-Hsuan ; Harrington, Kevin J. ; Lim, Sun Min ; Yang, Kunyu ; Kim, Sung-Bae ; Hahn, Dennis ; Haigentz, Missak ; Ahn, Myung-ju ; Yang, Muh-Hwa ; Burtness, Barbara ; Ji, Dongmei ; Kapoor, Aastha ; Wang, Hung-Ming ; Verheijen, Remy B. ; Bhatia, Aarti ; Geiger, Jessica ; Ince, William ; Liu, Lei ; Yilmaz, Emrullah ; Calderon, Benoit ; Rosenberg, Ari J. ; Xie, John ; Swiecicki, Paul Loren ; Metcalf, Robert ; Lin, Jin-Ching ; Lyu, Xuesong ; Keam, Bhumsuk ; Oliva, Marc ; Rutkowski, Tomasz ; Wade, Mark ; Shariff, Nisha Mohd ; Sandhu, Malwinder ; Ahn, Myung-Ju ; Rosenberg, Ari ; McDermott, Jessica ; Forster, Martin ; Geiger, Jessica L.
Single-agent paclitaxel or cetuximab after immune checkpoint inhibitor (ICI) and chemotherapy demonstrated objective response rates (ORRs) of 21%-24% in recurrent/metastatic (R/M) head/neck squamous cell cancer (HNSCC). Epidermal growth factor receptor (EGFR) and MET are overexpressed in R/M HNSCC. Amivantamab, an EGFR-MET bispecific antibody, may be a rational treatment. Cohort 1 of OrigAMI-4 (ClinicalTrials.gov identifier:
NCT06385080
) evaluated subcutaneous amivantamab administered every 3 weeks in participants with non-human papillomavirus R/M HNSCC after PD-(L)1 inhibitor and platinum-based chemotherapy. Prior anti-EGFR therapy and p16-positive oropharyngeal cancer were exclusionary. The primary end point was RECIST v1.1 ORR. Secondary end points included duration of response (DoR), progression-free survival (PFS), overall survival (OS), and safety. In 102 participants, blinded independent central review‑assessed ORR was 42% (95% CI, 32 to 52); the complete response rate was 15%. Median DoR was not reached (NR; 95% CI, 6.9 to NR); 56% of responses lasted ≥6 months. Investigator-assessed ORR was 47% (95% CI, 37 to 57). At a median follow-up of 11.8 months (range, 1.1-21.9), median PFS and OS were 6.8 months (95% CI, 5.2 to 8.3) and 12.5 months (95% CI, 10.2 to 16.8), respectively. Adverse events were consistent with previous experience with no new safety signals. Treatment-related discontinuations were low (8%). Amivantamab demonstrated greater antitumor activity in participants previously exposed to ICI and chemotherapy than has been reported for paclitaxel or cetuximab.